Magnetic circular dichroism of Eu(C2H5SO4)3·9H2O due to magnetic dipole transitions |
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| Authors: | Yoshifumi Kato Isamu Nakano |
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| Institution: | Department of Chemistry, Faculty of Science, Kobe University, Nada-ku, Kobe 657, Japan |
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| Abstract: | The magnetic circular dichroism (MCD) for the three low-energy absorption bands of the Eu(C2H5SO4)3·9H2O crystal has been measured at room temperature. It may be well understood from the MCD as well as from other experimental results that two of these bands, 7F1 → 5D0 and 7F0 → 5D1, are of magnetic dipole origin. However, the MCD of another band at about 18650 cm?1, 7F1 → 5D1, cannot be interpreted as being only one electric dipole in origin, which has been pointed out by several investigations. The present MCD analysis indicates that although this broad band consists of one electric- and two magnetic-dipole transitions, each of which has a sizeable absorption strength, the MCD spectrum originates exclusively from the two magnetic dipole transitions |
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